@article{TIMM_2023_29_4_a9, author = {S. F. Kamornikov and V. N. Tyutyanov}, title = {On the {Kegel--Wielandt} $\sigma${-Problem}}, journal = {Trudy Instituta matematiki i mehaniki}, pages = {121--129}, publisher = {mathdoc}, volume = {29}, number = {4}, year = {2023}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TIMM_2023_29_4_a9/} }